NPPES file of Aug 9, 2026

Peter William Gregor, MD

Cardiovascular Disease Physician · Owensboro, KY

Peter William Gregor, MD is a cardiovascular disease physician with a practice address in Owensboro, Kentucky, and NPI 1528021235, issued on Apr 11, 2006. Check the license (Kentucky 48756, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528021235
Name
Peter William Gregor
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
48756 KY
Self-reported in NPPES; status is on the state search
Practice location
1301 Pleasant Valley RD, Owensboro, KY 42303
Phone
(270) 417-7500
Enumerated
Apr 11, 2006
Record last updated
Jan 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(270) 417-7509
Medicaid IDs
64034291 KY
00C394170 CA
Medicare enrollment
Enrolled (PECOS I20220223002166); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1301 Pleasant Valley RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adam Barnard, PA-CPhysician Assistant1447546080
  2. Kerri BookerFamily Nurse Practitioner1477938280
  3. Robin Booth, P.A.Physician Assistant1801801337
  4. Catherine Bowlds, APRNFamily Nurse Practitioner1013656024
  5. Clare Braun Hashemi, M.D.Neurology Physician1801908025
  6. Richard Burgan, PA-CPhysician Assistant1043324569

Verify Peter William Gregor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKentucky Board of Medical Licensure
    Search for license 48756
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Kentucky license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

70 Medicare Part D claims for 18 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.

  1. Peter Gregor70
  2. Specialty average3,078

Most prescribed

  1. Losartan Potassium13 claims
  2. Xarelto13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Commonwealth Healthcare CorporationSaipan, MP

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter William Gregor among 284 cardiovascular disease physician records in Kentucky

Peter William Gregor, MD is one of 284 cardiovascular disease physician records with a practice address in Kentucky. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.

  • NPI issued2006 · 18% of these records are older, 43% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1974 · median 1998 among the 216 with a school on file
  • Record last updated2016 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Kentucky

There are 284 cardiovascular disease physician records in Kentucky.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Mary Branch, M.D.Owensboro, KY 423031710371976
  2. Mukesh Gupta, MDOwensboro, KY 423031679567655
  3. Christopher Havelda, M.D.Owensboro, KY 423031316051899
  4. Michael Kelley, M.D.Owensboro, KY 423031376606830
  5. Johnny Makhoul, MDOwensboro, KY 423031831183714
  6. Madhura MylaOwensboro, KY 423031821440082
  7. Robert Reed, M.D.Owensboro, KY 423031922136910
  8. Ali Salah, MDOwensboro, KY 423031225056724

Common questions

What is Peter William Gregor, MD's NPI number?

Peter William Gregor, MD's National Provider Identifier (NPI) is 1528021235, issued on Apr 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter William Gregor, MD located?

The NPPES record lists a practice address at 1301 Pleasant Valley RD, Owensboro, KY, 42303. Phone: (270) 417-7500. Providers update this record themselves, so call before visiting.

How can I verify Peter William Gregor, MD's license?

NPPES lists Kentucky license number 48756, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Peter William Gregor, MD prescribe under Medicare Part D?

In 2024, Peter William Gregor, MD had 70 Medicare Part D claims for 18 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.